Type Mac GFX_FreePlayerCofCache as void __cdecl (void)
Mac body reads no args (ECX is set internally before the 0x0006847c call): frees the player COF cache entries, subtracts their size from the COF memory counter, frees the buffer (line 0xe50) and zeroes the 0x80c-byte cache global; plain RET. The only caller GFX_FreeCofCaches (0x00064f3f) passes nothing and ignores EAX.
Changes 1, applied together
Set prototype
mac 0x00064f8dsignatureundefined GFX_FreePlayerCofCache(void)→void GFX_FreePlayerCofCache(void)conventionunknown→__cdecl